5.5 inch Square propagation pot

While there are many ways to start seeds or cuttings, after years of experience we have found these square pots to be optimal. They fit 8 pots perfectly in a standard 10 x 20 propagation tray snugly to avoid the issue of 'cups falling over' as when people use beer cups. There is also a decent amount of room for the roots to grow so you don't need to repot as soon as with smaller containers, and not as much work to keep the soil/substrate moist.